A scientist is attempting to build a cladogram that shows the evolutionary closeness of three organisms in relation to humans. After doing DNA analysis, they determine that the organisms share the following percentages of DNA:

Question

Organism A and humans share 85% of their DNA.

Organism B and humans share 80% of their DNA.

Organism C and humans share 90% of their DNA.

Based on this information, which order should they go on the cladogram (from least related to most related)?

(1 point)
Responses

B, A, C, humans
B, A, C, humans

C, B, A, humans
C, B, A, humans

A, B, C, humans
A, B, C, humans

C, A, B, humans

Answer 1

To determine the correct order for the cladogram based on the shared DNA percentages, we need to arrange the organisms from the least related to the most related to humans.

The percentages of DNA shared with humans are:

• Organism A: 85%
• Organism B: 80%
• Organism C: 90%

From this data, we can order the organisms by the percentage of shared DNA:

1. Organism B (80% shared) - least related
2. Organism A (85% shared)
3. Organism C (90% shared) - most related

Therefore, the correct order from least related to most related is: B, A, C, humans.

So the correct response is: B, A, C, humans.